692-50-2Relevant articles and documents
Vicinal dichlorine elimination at dichloroalkenes promoted by a well-defined iron(0) complex
Thoreson, Kristen A.,McNeill, Kristopher
, p. 1646 - 1648 (2011)
Dechlorination reactions at sp2 C-Cl bonds by a pentaphosphino zero-valent iron (ZVI) complex are proposed to follow an oxidative addition, β-Cl-elimination pathway en route to iron-chloride, iron-hydride and iron-acetylide products, the distribution being dependent on the nature of alkyne produced.
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Henne,Finnegan
, p. 298 (1949)
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PHOTOREACTIONS OF TETRAFLUORODIPHOSPHINE WITH ALKYNES
Morse, J. G.,Mielcarek, J. J.
, p. 41 - 50 (1988)
The reaction of tetrafluorodiphosphine with several alkynes in the gas phase and under UV irradiation were studied.Simple addition products were obtained in substantial yield from CF3CCH, CF3CCCH3 and CF3CCCF3.Methyl substituted alkynes gave little volatile product while ethyne and diphenyl ethyne gave no volatile addition products.Non-volatile byproducts were obtained, probably polymers, in substantial quantity in the latter instances.Volatile products were characterized by IR and NMR spectra and by mass spectrometry.
Preparation method of 1, 1, 1, 4, 4, 4-hexafluoro-2-butyne
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Paragraph 0034-0049, (2021/02/06)
The invention discloses a preparation method of 1, 1, 1, 4, 4, 4-hexafluoro-2-butyne, which comprises the following steps: reacting hexachlorobutadiene with fluoride salt in a solvent, condensing, andcollecting the gas-phase reaction product to obtain the 1, 1, 1, 4, 4, 4-hexafluoro-2-butyne. The method has the advantages of being simple in process, high in yield, economical, environmentally friendly and easy to industrialize.
PROCESSES FOR PRODUCING Z-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE AND INTERMEDIATES FOR PRODUCING SAME
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Page/Page column 24-27, (2020/10/20)
A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with hydrogen fluoride in the vapor phase in the presence of a fluorination catalyst comprising a metal halide to produce E- and Z-1,1,1,4,4,4-hexafluoro-2-chloro-2-butene. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene further comprises contacting E- and Z-1,1,1,4,4,4-hexafluoro-2-chloro-2-butene with base to produce 1,1,1,4,4,4-hexafluoro-2-butyne, and subsequently hydrogenating hexafluoro-2-butyne to produce Z-1,1,1,4,4,4-hexafluoro-2-butene.